Self and h



A Ilo all whom-it length' and size.

5mmlstmt five;

SELF AND'H. Hycon, 0F SAME PLACE. Laim Patent No, 89,097, acted Apfel 2o, 1869.'

'i nlnno j marrones no ohodulonfndteinehuenmheenc-mdmaldugpmcrmm Be it known that I, oALvN wmnwent, of Paises;

ville, in the county of Lake, and State of O hio, have inve|1' ted`certain' new and useful Improvements'in Ship# Spike and Bling-Bit; 1and' I do hereby declare that the following is a full and complete description of the same,

reference being hadtotheaccompanyiugdrwingemaking a part of this specification, in which- Figure 1 is a. sidevie'w of the bit;

iFigure 2 is ani end'view. Likellettersrefer to like parts. v My invention consists in the construction of a boringbit, inninga4 capacityfor boringwith. one operation a. hole for. the'body-of e'- spike, and anenlarged hole for In spiking the outside lank'w the sid "tfjasnib," it is customary to bore a hole for the admission ofthe' spike, which-being done, a section of the hole is then enlarged' 'for the admission of the head of the spike,

which is s'unlrl toa.v considerable distance' inthe timber orplank;v

' The hole is then plugged up with a bung, thereby keeping the spike-from immediate contact with the rIlhe usual method 'of boring said holes" is bythe separate opertions, requiring much time toperforr', in consequence of the time.required to change the bits; also', without the exercise of';much care, the

holes are not bored true in their relation to each other. Hence .the head of the spike willsometimes lean to one side, aud in'driving it in will` crowdagainst vand tear the sides of the hole, sothat the bung will not To avoid this'trouble and defect, consequent' of the 'use of two ,separate bits, I construct the-auger as shownfin the drawing, lig. 1, vin which A is the section .for ,boring for 'the spike, which is of the proper 'B, the upper section, is for the bung,l of the proper 'length and size; the two, as will be seen, comprising but one bit.

'lhe cutting-edge and twist of the auger are the A I am aware tha,t` implements ,same asthose in ordinary 'use,:'as`s `hown in iig'. 2, and

the practical use of 'the sam'eis Y n.sfiollovv-s: Thel spike-section of thea'uger'is first bored into the wood-which is followed by the'enlarged'section B, for the 'bung-,thereby en tting the twol holes at one operation, and in true relationto each-other.

By the Ause of this implement,tl1ework 'is done in'y much less time and with less expense, as one auger onlyA is required for the work Hence, n'o time is spenty 'in changing'bits, and', as ,above said, the bnngvhole' being; intrue relation with the spike-hole, .the head ofthe spkewill at all times enteneefrom crowding, soA half-thc4 hole in consequence is truejvand smooth f 'for the admission of the bung. have been used in `whichdiere-'wins sharing-bit that wonrdaboreaahoief' 'for the" body of -a spike, and such b it .was detachable fromanother pmt-that' bored a, larger hole, sch havingbeen patented Iauuary 7,-"1868.

The construction and operation of -the implement thereindescribed and claimed, have no analogy to-what I `claim as my invention, for, while the patented implement will b'orc, to'a. limited extent, the two-sized holes, yet'it cannot do it 4so well as mine', because the' cutters that bore the large'rfhole are not calcnlated to cnt when the other or smallerbit is doing its work. Nor i's there any provision in the implement for` -discharging the chips out from the enlarged hole,the tool beingfor anentirely different purpose from .what mine' -is used for.

I am alsoa'ware that many-different devices are 4nscd wibhjboring'bits, which may be adjustedupou said bit,

that willbore au .enlarged hole'. Such bit I do not claim, as mine i ade in'onc tool,'and is not susceptible o f change, nd is tobe used as vtiny ordinary bit. Y Having thusdescribed my invention,

What I claim as. in y improvement, and desire to -secnreby Letters Patent, is-' 'A boring-bit, having the 'small pai-t A and large part B, constructed'togetler in oneand lthe same tool, to

operate in the manner and for the purpose described.

Y CALVIN WARDWELL.

Witnesses: l

'SAML Moonm', Enwrs HUNTINGTON. 

